Bucculatrix angustata is a moth in the Bucculatricidae family. It is found in North America, where it has been recorded from the eastern United States to Texas, Utah and Washington. The wingspan is 7–9 mm. The forewings are pale whitish brown to dark brown with a white longitudinal streak from the base to about half the wing length. The hindwings are pale brownish grey. Adults have been recorded on wing from April to October.